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Money & Budgeting prompts

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Budgets, negotiation scripts and understanding the document you were sent. Below are 7 copy-ready prompts. Fill in the [BRACKETS], copy, and paste into ChatGPT, Claude, Gemini or any capable assistant.

Money is where the line between useful and dangerous is sharpest: explaining and organising is fine, advising on what to do with your money is not.

The 7 prompts

Beginner 6 blanks to fill

Work out where your money actually goes

Get a clear picture of your spending.

Prompt
Help me understand my spending.

MY INCOME: [AMOUNT AND HOW OFTEN]
MY REGULAR OUTGOINGS: [LIST WHAT YOU KNOW - rent or mortgage, bills, subscriptions, transport, anything fixed]
WHAT I THINK I SPEND ON OTHER THINGS: [YOUR ESTIMATE]
BANK STATEMENT OR RECORDS: [PASTE IF YOU HAVE THEM]
CURRENCY: [CURRENCY]
WHAT PROMPTED THIS: [nothing in particular / money is tight / saving for something / it does not add up]

Produce:

1. THE CATEGORISED PICTURE - everything sorted into: fixed and unavoidable, fixed but changeable, variable but necessary, and discretionary. Show each as an amount and as a percentage of income. The percentages are what make the picture legible.

2. THE ARITHMETIC - income minus outgoings. Show the working. If I gave an estimate for other spending, compare income minus everything against what I think is left, and flag the gap. The gap between assumed and actual spending is usually the finding.

3. THE UNACCOUNTED AMOUNT - if the numbers do not reconcile, the difference is spending I have not accounted for. Say how much and where it most likely goes, based on the statement if I provided one.

4. THE SMALL REPEATED THINGS - the category people most underestimate. Daily or weekly small amounts add to substantial annual figures. Calculate the annual total for anything recurring in my records, because the monthly figure is misleading.

5. THE SUBSCRIPTIONS AND RECURRING PAYMENTS - listed with annual cost, including anything that may have renewed without being noticed. This is routinely the easiest place to find money.

6. THE FIXED COSTS THAT ARE NOT FIXED - things treated as unchangeable that could be changed: insurance, utilities, phone and broadband contracts, and anything on a rolling renewal. Note what is worth reviewing and roughly how often.

7. THE PATTERN - what my spending shows about when and why money goes out. Spending frequently clusters around specific circumstances rather than being spread evenly.

8. WHAT LOOKS REASONABLE - not everything needs cutting. Say what is proportionate, so the exercise is informative rather than a list of things to feel bad about.

9. THE BIGGEST LEVERS - the two or three changes that would make the most difference, in order, with the annual amount each would free.

10. WHAT TO TRACK - if the picture is incomplete, the simplest way to fill it in over a month.

This is arithmetic and organisation, not financial advice. For decisions about debt, investments, pensions, tax or anything with long-term consequences, a qualified adviser should be involved.

What you get: Spending categorised with percentages, the arithmetic shown, unaccounted money identified, annual totals for small recurring items and the biggest levers.

Tip: Point 4 changes how spending looks. A daily small purchase is trivial monthly and a significant annual figure, and only the annual number is persuasive.

Open in Written for Claude, ChatGPT, Gemini · Reviewed September 18, 2026
Beginner 7 blanks to fill

Build a budget you will stick to

Set up a spending plan that survives contact with real life.

Prompt
Help me build a budget.

INCOME: [AMOUNT, HOW OFTEN, AND WHETHER IT VARIES]
FIXED COSTS: [LIST THEM]
VARIABLE SPENDING: [WHAT YOU KNOW]
WHAT I AM BUDGETING FOR: [getting control / saving for something / paying something off / income has changed]
WHAT HAS FAILED BEFORE: [IF YOU HAVE TRIED]
HOUSEHOLD: [WHO ELSE'S MONEY IS INVOLVED]
CURRENCY: [CURRENCY]

Produce:

1. WHY BUDGETS FAIL - so the design avoids it: too detailed to maintain, no allowance for irregular costs, no allowance for enjoyment so it feels like deprivation, and built on optimistic figures rather than actual ones. Say which caused my previous attempts to fail.

2. THE STRUCTURE - deliberately simple. Most people need three or four categories, not twenty. A budget with fifteen categories requires a decision at every purchase and is abandoned within weeks.

3. THE IRREGULAR COSTS - the most common reason budgets break. Annual and occasional expenses that are not monthly but are entirely predictable: insurance renewals, car costs, birthdays, Christmas, travel, replacing things that wear out. Total them annually, divide by twelve, and treat that as a monthly cost. A budget that ignores these appears to work and then fails every few months.

4. THE REALISTIC FIGURES - based on what I actually spend rather than what I intend to spend. A budget built on intentions fails immediately and then feels like a personal failing rather than a design error.

5. THE ENJOYMENT ALLOCATION - a defined amount for things that are simply enjoyable, with no guilt attached. Budgets with no allowance for this are abandoned, and the abandonment usually costs more than the allocation would have.

6. THE BUFFER - a small amount unallocated, for the ordinary unpredictability of a month.

7. THE MECHANISM - how this works in practice: separate accounts, a weekly amount, or simply a number to check against. Say what suits my situation, keeping it as simple as possible.

8. THE AUTOMATION - what can happen without a decision: transfers on payday, bills on direct debit. Every decision removed is a decision that cannot go wrong.

9. IF INCOME VARIES - the specific approach: budget on the lowest realistic month, and treat anything above that separately. This is different from budgeting on an average, which fails in the low months.

10. THE HOUSEHOLD QUESTION - if other people's money is involved, what needs agreeing and how to raise it.

11. THE REVIEW - monthly, briefly. Adjusting a budget that does not fit is maintenance, not failure.

This is planning and arithmetic, not financial advice. For debt, investments, pensions or tax, speak to a qualified adviser.

What you get: A simple category structure, irregular costs annualised into monthly, realistic figures, a guilt-free enjoyment allocation and automation.

Tip: Point 3 is why most budgets fail around month four. Insurance, car costs and Christmas are entirely predictable and almost never budgeted monthly.

Open in Written for Claude, ChatGPT, Gemini · Reviewed September 18, 2026
Beginner 7 blanks to fill

Compare options for a purchase or contract

Work out which deal is actually cheaper.

Prompt
Help me compare these options.

WHAT I AM BUYING OR SIGNING UP FOR: [WHAT IT IS]
THE OPTIONS:
"""
[PASTE EACH - price, terms, what is included]
"""
HOW LONG I WILL USE IT: [TIMEFRAME]
MY USAGE: [HOW MUCH YOU WILL ACTUALLY USE IT]
WHAT MATTERS TO ME: [PRIORITIES BEYOND PRICE]
CURRENCY: [CURRENCY]

Produce:

1. THE NORMALISATION - restate every option on the same basis: same period, same unit, same inclusions. State every adjustment made. Headline prices for different things cannot be compared, and this step usually changes the ranking.

2. THE TOTAL COST over my stated timeframe - including everything:
   - The headline price
   - Setup, joining or activation fees
   - What happens after any introductory period, which is where the cost usually is
   - Charges for exceeding included usage
   - Exit or early termination costs
   - Anything that increases annually
   Mark anything not stated in the options as [NOT STATED - ASK].

3. THE INTRODUCTORY RATE TRAP - if any option has a discounted initial period, calculate the cost over the full term rather than the discounted one, and say what the ongoing price is. This is the single most common way a cheaper option turns out to be more expensive.

4. THE USAGE CHECK - against what I said I will use. Options are priced for particular usage patterns, and the cheapest depends entirely on which pattern you match. Say which option suits my stated usage and what would change that.

5. THE COMMITMENT COST - what each option locks me into, for how long, and what it costs to leave. A cheaper price with a long commitment is only cheaper if circumstances do not change.

6. WHAT IS NOT COMPARABLE - the differences in kind rather than price: service level, terms, what is covered, flexibility. Price comparison alone gives the wrong answer where these differ materially.

7. THE QUESTIONS TO ASK before deciding - specific to what each option has left vague.

8. THE RANKING - on total cost, and separately on fit to what I said matters. If the cheapest does not meet my needs, say so.

9. THE DO-NOTHING OPTION - if I already have something, what continuing costs, including whether an existing arrangement has quietly increased. Renewal prices frequently exceed new-customer prices.

10. THE TIMING - whether there is a better time to do this, and whether an existing contract has a notice period or exit window.

This is arithmetic and comparison, not financial advice. For anything involving credit, insurance suitability, or long-term financial commitments, get qualified advice.

What you get: Options normalised to the same basis, total cost over your real timeframe, the introductory rate calculated out and a usage-matched ranking.

Tip: Point 3 is the calculation providers rely on you not doing. A twelve-month discount on a twenty-four month contract is half the story.

Open in Written for Claude, ChatGPT, Gemini · Reviewed September 18, 2026
Beginner 7 blanks to fill

Plan for a large upcoming expense

Work out how to afford something you know is coming.

Prompt
Help me plan for a large expense.

WHAT IT IS: [THE EXPENSE]
HOW MUCH: [ESTIMATED COST]
WHEN: [WHEN YOU NEED THE MONEY]
WHAT I HAVE TOWARDS IT: [AMOUNT, if any]
WHAT I CAN PUT ASIDE: [PER MONTH, REALISTICALLY]
HOW FIXED IS THE DATE: [must happen then / flexible / can be delayed]
CURRENCY: [CURRENCY]

Produce:

1. THE ARITHMETIC - what is needed, what exists, what the gap is, and what that requires per month against my stated timeframe. Show the working. Compare it to what I said I can put aside and say plainly whether it works.

2. IF IT DOES NOT WORK - the options, stated neutrally:
   - Delay it, if the date is flexible
   - Reduce the cost: a smaller version, a different specification, second-hand, or a different supplier
   - Increase the amount saved, and where that would come from
   - Spread the cost, with the caveat that this has its own cost and needs proper consideration
   Say which of these my situation supports.

3. THE COST CHECK - is my estimate realistic? Large expenses routinely come with associated costs people do not include: delivery, installation, fees, the thing you also need, insurance, and the running costs afterwards. List what to check for this specific expense.

4. THE ONGOING COST - many large purchases carry continuing costs. Say what this one implies, because the purchase price is sometimes the smaller number over time.

5. THE TIMELINE - what to save by when, as milestones, so it is trackable rather than a single distant target.

6. THE PROTECTION - keeping this money separate from everyday spending, so it does not get absorbed. The specific practical arrangement.

7. THE COMPETING PRIORITIES - whether saving for this displaces something else that matters more. Worth stating rather than assuming.

8. THE EMERGENCY QUESTION - whether this uses money that would otherwise be a buffer. Spending everything on a planned expense leaves nothing for an unplanned one, and that is worth deciding deliberately.

9. WHAT COULD CHANGE - the things that would alter the cost or the timing, and what to do about each.

10. THE REVIEW POINT - when to check progress and adjust.

This is planning arithmetic, not financial advice. Anything involving borrowing, credit agreements, releasing equity or using savings vehicles should be discussed with a qualified adviser, who can consider your full circumstances.

What you get: The arithmetic with a plain feasibility verdict, associated costs you may have missed, ongoing costs, milestones and a buffer question.

Tip: Point 3 catches the usual shortfall. Large purchases arrive with delivery, installation, fees and the accessory you also need, and the estimate rarely includes them.

Open in Written for Claude, ChatGPT, Gemini · Reviewed September 18, 2026
Beginner 7 blanks to fill

Reduce a specific regular cost

Cut a bill without cutting anything that matters.

Prompt
Help me reduce this cost.

WHAT IT IS: [THE BILL OR EXPENSE]
WHAT I PAY NOW: [AMOUNT AND HOW OFTEN]
MY CURRENT ARRANGEMENT: [PROVIDER, CONTRACT, HOW LONG YOU HAVE BEEN WITH THEM]
MY USAGE: [HOW MUCH YOU ACTUALLY USE]
WHAT I NEED FROM IT: [THE NON-NEGOTIABLES]
WHAT I HAVE ALREADY TRIED: [IF ANYTHING]
CURRENCY: [CURRENCY]

Produce:

1. THE LOYALTY PENALTY CHECK - the first thing to examine. In many markets, existing customers pay more than new ones, and prices increase quietly at renewal. How long I have been with this provider is often the single largest factor in what I am paying. Say what to check.

2. THE USAGE MATCH - am I on the right arrangement for how much I actually use? Paying for an allowance I do not use, or exceeding one and incurring charges, are both common. Compare my stated usage to what I am paying for.

3. THE REDUCTION ROUTES, in order of effort against return:
   - Ask for a better price. In many markets this works, and the retention team has discretion the general line does not. Say whether this applies here.
   - Switch provider, and what that involves
   - Change the arrangement with the same provider
   - Reduce actual usage
   - Remove something included that I do not need

4. THE SCRIPT - if asking for a reduction is a realistic route, what to say. Brief, specific, mentioning a competitor's price if you have one, and asking directly. Be willing to end the call and try again, since outcomes vary by who answers.

5. THE SWITCHING REALITY - what it actually involves, how long, whether there is a gap in service, and any exit cost from the current arrangement. Switching is frequently easier than people assume, which is what the current pricing relies on.

6. THE EXIT COST CHECK - whether I am in a contract and what leaving costs, weighed against the saving.

7. THE FALSE SAVINGS - reductions that cost more elsewhere: removing cover that matters, a cheaper arrangement with worse terms, or a saving that expires after a few months and then costs more.

8. WHAT TO KEEP - given my stated non-negotiables, what must not be cut in pursuit of a lower price.

9. THE ANNUAL SAVING - the realistic figure, to judge whether the effort is worth it.

10. THE RECURRENCE - a reminder to check again before the next renewal, because the price will drift back up. Say when.

This is practical cost comparison, not financial advice. For insurance suitability, credit agreements or anything with long-term implications, get qualified advice.

What you get: A loyalty penalty check, a usage match, reduction routes ranked by effort, a script for asking, false savings named and a renewal reminder.

Tip: Point 1 is where the money usually is. Being a long-standing customer is, in several markets, the main reason a bill is higher than it needs to be.

Open in Written for Claude, ChatGPT, Gemini · Reviewed September 18, 2026
Beginner 7 blanks to fill

Split shared costs fairly

Sort out money between housemates, friends or family.

Prompt
Help me work out how to split these costs.

WHO IS INVOLVED: [PEOPLE AND THEIR RELATIONSHIP]
WHAT IS BEING SHARED: [rent, bills, food, a trip, a joint purchase, household expenses]
THE AMOUNTS: [WHAT THINGS COST]
THE SITUATION: [equal incomes / different incomes / different usage / different circumstances]
HOW IT WORKS NOW: [CURRENT ARRANGEMENT, if any]
WHAT IS CAUSING FRICTION: [IF ANYTHING]
CURRENCY: [CURRENCY]

Produce:

1. THE SPLITTING OPTIONS - each with what it is fair to and what it is unfair to:
   - EQUAL SHARES: simple, and unfair where usage or income differ substantially
   - BY USAGE: fair for things people use differently, and requires tracking
   - BY INCOME PROPORTION: fair where incomes differ a lot, and requires disclosing income
   - BY ROOM OR SPACE: for housing costs where rooms differ
   - MIXED: equal for some things, proportional for others
   Recommend one for my situation and say why.

2. THE CALCULATION - the actual split for the amounts I gave, under the recommended method, shown clearly so everyone can check it.

3. THE FRICTION SOURCE - I said what is causing problems. The usual causes are: unequal usage of something split equally, one person always paying and chasing, unspoken resentment about different incomes, and no agreement about what counts as shared. Identify mine.

4. THE CATEGORY QUESTION - what counts as shared and what does not. Most disputes are about this rather than about amounts. Make the boundary explicit: shared food versus individual, communal items, guests, and anything one person uses far more.

5. THE MECHANISM - how money actually moves: a joint account, one person paying and being reimbursed, an app, or a monthly settle-up. Pick one that removes the chasing, because chasing is what causes resentment.

6. THE CHASING PROBLEM - whoever pays first ends up chasing, and that role wears thin. The arrangement should not depend on one person being the bookkeeper. Say how to avoid it.

7. THE DIFFERENT INCOME CONVERSATION - if relevant, how to raise proportional splitting without anyone having to disclose more than they want to. Options exist between equal shares and full disclosure.

8. WHAT TO AGREE EXPLICITLY - the handful of things that should be stated rather than assumed, because assuming is what creates the awkward conversation later.

9. HOW TO RAISE IT - if changing an existing arrangement, the wording. Framed around the system rather than around anyone's behaviour.

10. THE REVIEW - a point at which to check the arrangement still fits, so adjusting it is normal rather than a confrontation.

What you get: Splitting methods with their fairness trade-offs, the calculation shown, the friction source diagnosed, a mechanism that removes chasing and what to agree explicitly.

Tip: Point 4 resolves most shared-money disputes. People rarely disagree about arithmetic; they disagree about what should have been in the shared pot.

Open in Written for Claude, ChatGPT, Gemini · Reviewed September 18, 2026
Beginner 8 blanks to fill

Decide whether a purchase is worth it

Think through spending decisions you keep going back and forth on.

Prompt
Help me decide whether to buy this.

WHAT IT IS: [THE THING]
WHAT IT COSTS: [PRICE, AND ANY ONGOING COST]
WHY I WANT IT: [THE REASON, honestly]
WHAT I WOULD USE IT FOR: [ACTUAL USE, AND HOW OFTEN]
WHAT I HAVE NOW: [WHAT IT WOULD REPLACE OR ADD TO]
MY SITUATION: [whether this is affordable comfortably, tightly, or not really]
HOW LONG I HAVE BEEN THINKING ABOUT IT: [TIMEFRAME]
CURRENCY: [CURRENCY]

Produce:

1. THE COST PER USE - the price divided by realistic usage over its expected life. Be sceptical about my usage estimate; people consistently overestimate how often they will use a new thing, particularly one bought for an aspiration rather than a current activity. Give both my estimate and a realistic one.

2. THE TOTAL COST - beyond the price: running costs, consumables, maintenance, insurance, storage, and anything else it requires. Some purchases cost more after buying than to buy.

3. THE HONEST REASON - I said why I want it. Distinguish:
   - Solving a problem I currently have
   - Improving something I currently do
   - Enabling something I intend to start
   - Wanting it, which is a legitimate reason and worth naming as itself
   The third is where money most often goes to waste, because the intended activity frequently does not begin.

4. THE ALTERNATIVES - borrow, hire, buy second-hand, buy a cheaper version, or make do with what I have. For something used rarely, hiring is usually better than owning.

5. THE WHAT-I-HAVE-NOW CHECK - what is actually wrong with the current one, and whether that is a reason to replace it or a reason for something else. Sometimes the existing thing is fine and the dissatisfaction is elsewhere.

6. THE AFFORDABILITY - I said what my situation is. If it is tight, say plainly what this displaces, rather than treating the decision as being only about the thing.

7. THE DELAY TEST - I said how long I have been thinking about it. Sustained wanting over months is different from wanting it since Tuesday. If it is recent, waiting a few weeks costs nothing and resolves most of these decisions by itself.

8. THE REGRET DIRECTION - which is more likely: regretting the purchase, or regretting not buying it. These are genuinely different for different kinds of purchase, and for things that enable experiences the second is often more likely.

9. THE REVERSIBILITY - can it be returned, resold, or is the money gone? Reversible decisions deserve less deliberation.

10. THE HONEST VERDICT - buy it, do not, or wait, with reasoning. Do not simply validate what I have already decided.

This is reasoning through a decision, not financial advice.

What you get: A realistic cost per use, total cost including running costs, the honest reason categorised, alternatives and a clear verdict.

Tip: Point 3's third category is where most wasted money goes. Equipment bought to enable an activity you have not yet started usually outlives the intention.

Open in Written for Claude, ChatGPT, Gemini · Reviewed September 18, 2026

Where AI actually helps here

  • Building a budget structure from income and outgoings you supply
  • Explaining a financial document in plain language — a statement, a policy, a contract
  • Scripts for negotiating a bill, cancelling a subscription, disputing a charge

Where it falls down

  • Investment, pension and tax advice. Regulated, jurisdictional, personal
  • Arithmetic. Budget totals it produces are unreliable — use a spreadsheet
  • Current rates, thresholds and allowances, which change and have a cutoff

The mistake almost everyone makes: Asking what you should do with your money

It will answer, in a regulated field, without knowing your circumstances, jurisdiction, obligations or risk tolerance — and it will sound like advice. Ask it instead to explain the options and the questions you should be asking. The decision, and the professional, stay yours.

Free tool: Token & Cost Calculator

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Questions people ask


Can AI give financial advice?

It produces text that reads like financial advice, which is not the same thing. Regulated advice accounts for your circumstances and carries accountability; this does neither. Use it to understand the options, then talk to someone qualified.


Can AI help me negotiate a bill?

Yes, and it is genuinely good at it — the script, the tone, the anticipated objections and your responses. Give it the amounts, the history and what you would accept.